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-- |
-- Module : Zettel.Math
-- Description : Wrap math with hugo raw-html markers
-- Copyright : (c) 2023, Yann Herklotz
-- License : GPL-3.0-only
-- Maintainer : git [at] yannherklotz [dot] com
-- Stability : experimental
-- Portability : POSIX
module Zettel.Math where
import Text.Pandoc.Definition (Inline (..), Block (..))
import Text.Pandoc.Walk (walk)
import Zettel.Types
wrapMath :: [Inline] -> [Inline]
wrapMath = concatMap f
where
f :: Inline -> [Inline]
f m@(Math _ _) = [RawInline "markdown" "{{< math >}}", m, RawInline "markdown" "{{< /math >}}"]
f a = [a]
wrapMathLatex :: Block -> Block
wrapMathLatex r@(RawBlock t b)
| t == "latex" = RawBlock "markdown" $ "{{< math >}}\n" <> b <> "{{< /math >}}"
| otherwise = r
wrapMathLatex r = r
wrapZettelGraph :: ZettelGraph -> ZettelGraph
wrapZettelGraph = walk wrapMathLatex . walk wrapMath
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